"Kodomo no Jikan" is a Japanese manga series written by Kawashita Mizuki. It follows the story of a young girl named Rin Kokonoe and her interactions with her teacher, Daisuke Aoki. The series explores themes of childhood, innocence, and the complexities of relationships in a school setting. The manga has been adapted into an anime and has garnered attention for its controversial themes. It has sparked discussions about the portrayal of children and adult relationships in media. Despite its popularity, "Kodomo no Jikan" has faced criticism and censorship in various regions due to its sensitive content.